CONFIG_MSP_HAS_MAC is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_MSP_HAS_MAC.
Result is shown for kernelversion 6.9.9

CONFIG_MSP_HAS_MAC (not configurable)

modulename: msp_eth.ko

configname: CONFIG_MSP_HAS_MAC

Linux Kernel Configuration
└─>MSP_HAS_MAC
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
source code:
arch/mips/pmcs-msp71xx/msp_eth.c
depends
CONFIG_PMC_MSP

is depended by
CONFIG_MSP_ETH